Finishing compound for plastered walls



NIIED Marne Parent Orricno THOMAS J. NEAVITT, OF AUSTIN, TEXAS.

FINISHING COMPOUND FOR PLASTERED WALLS.

SPECIFICATION forming part of Letters Patent No. 399,920, dated March 19, 1889.

Application filed August 17, 1888. Serial No. 282,980. No specimens.)

To all whom it may concern.-

Be it known that 1, THOMAS J. NEAVITT, a citizen of the United States, residing at Austin, in the county of Travis and State of Texas, have invented certain new and useful Improvements in Finishing Compounds for Plastered W'alls; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

The object of this invention is to give to the plastered walls and ceilings of a house a brilliant and lustrous finish, so that they will reflect light and have the appearance of polished surfaces. To accomplish this I apply to the plastered surface a thin coat of a con'r pound containing glue, with gum-arabic and glycerine, as hereinafter described, and which compound constitutes the present invention. I have for along period of time experimented to obtain a hard lustrous finish for plastered walls which could be readily applied by a brush and would be hard, glossy, and durable. As a partial realizatiol'i of this end I have used simply a thin coat of glue, as described and claimed in a prior application for a patent filed by me; but it is found that a glue finish, though glossy and under most conditions durable, is not adhesive and elastic enough to withstand extreme temperatures, and. when subjected to a very cold temperature it cracks and peels. To overcome this defect and secure a finish which shall be hard and durable under all the variable conditions of heat and cold, dryness and moisture, to which a house-wall is subjected, I now cmploy the following com mundz Take of white glue, two pounds; white gum-arabic, one

ounce; glycerine, three-fourths of an ounce.

Add the above to one gallon of rain-water and dissolve over a water bath. \Vhen thoroughly dissolved, the preparation is ready for use. It should be applied warm to the walls in summer and in winter hot. I preferably apply the coat to the wall with a brush of special construction, which is provided with a follower that wipes the wall immediately after the compound is applied and leaves a thin coat evenly spread thereon. The surface should be clean and free from dust. A second coat is preferably applied to give body to the polish. It soon dries, and with the lapse of time becomes hard and fiinty. Nothing can stain the wall, and it presents a brilliant surface without requiring any polishing. Any marks or stains on a wall thus finished are best removed by wiping it with a cloth and a few drops of kerosene-oil, the polish being even improved.

The gum-arabic added to the preparation improves the adhesive quality of the glue when applied to plaster, and the glycerine gives the requisite degree of elasticity to render the surface film durable and to prevent it from peeling.

hat I claim as my invention is A finishing compound for plastered surfaces, consisting of glue, gum-arable, and glyc erine, and for the purposes set forth.

I11 testimony whereof I- a'liix my signature in presence of two witnesses.

THOMAS J. NEAVITT. \I'itnesses:

STORY B. LADD, RUTLEDGE WILLsON. 

